# Convertto — Complete Tool Reference > Free online converters and tools that run entirely in your browser. No uploads, no sign-up, no limits. Generated from the live registry. 611 tools. --- # Unit Converters Convertto provides 22 unit converters covering length, weight, temperature, area, volume, speed, pressure, energy, data storage and more. Each converter runs instantly in your browser with no sign-up, supports dozens of units per category, and shows the conversion formula alongside the result. ## Angle Converter URL: https://convertto.tech/t/angle-converter To convert angle, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 7 supported units. A full turn is 360 degrees, 2π radians or 400 gradians. Trigonometric functions in most programming languages expect radians. ### Facts - **Units supported**: 7 - **Base unit**: ° - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this angle converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. A full turn is 360 degrees, 2π radians or 400 gradians. Trigonometric functions in most programming languages expect radians. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: angle converter, degrees to radians, radians to degrees, gradians converter Last updated: 2026-08-01 ## Area Converter URL: https://convertto.tech/t/area-converter To convert area, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 10 supported units. An acre is 4046.8564224 m² exactly, and a hectare is 10,000 m². One hectare is about 2.471 acres. ### Facts - **Units supported**: 10 - **Base unit**: m² - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this area converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. An acre is 4046.8564224 m² exactly, and a hectare is 10,000 m². One hectare is about 2.471 acres. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: area converter, square meters to square feet, acres to hectares, sq ft converter Last updated: 2026-08-01 ## Clothing Size Converter URL: https://convertto.tech/t/clothing-size-converter To convert clothing size, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 6 supported units. Clothing sizes are not standardised — vanity sizing means two garments with the same label can differ by several centimetres. Treat these as a starting point, then check the garment's measurements. ### Facts - **Units supported**: 6 - **Base unit**: index - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this clothing size converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Clothing sizes are not standardised — vanity sizing means two garments with the same label can differ by several centimetres. Treat these as a starting point, then check the garment's measurements. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: clothing size converter, us to eu clothing size, uk to us size, dress size converter, international size chart Last updated: 2026-08-01 ## Cooking Measurement Converter URL: https://convertto.tech/t/cooking-converter To convert cooking measurement, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 10 supported units. A US cup is 236.6 mL, a metric cup is 250 mL and an Australian tablespoon is 20 mL rather than 15 mL. Recipe origin matters. ### Facts - **Units supported**: 10 - **Base unit**: mL - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this cooking measurement converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. A US cup is 236.6 mL, a metric cup is 250 mL and an Australian tablespoon is 20 mL rather than 15 mL. Recipe origin matters. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: cooking converter, cups to ml, tablespoons to ml, recipe converter, baking measurement converter Last updated: 2026-08-01 ## Data Storage Converter URL: https://convertto.tech/t/data-storage-converter To convert data size, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 11 supported units. Drive manufacturers use decimal units (1 GB = 1000 MB) while Windows reports binary units (1 GiB = 1024 MiB). That is why a "1 TB" drive appears as 931 GB. ### Facts - **Units supported**: 11 - **Base unit**: byte - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this data size converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Drive manufacturers use decimal units (1 GB = 1000 MB) while Windows reports binary units (1 GiB = 1024 MiB). That is why a "1 TB" drive appears as 931 GB. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: data storage converter, mb to gb, gb to tb, bytes converter, kib vs kb, binary vs decimal bytes Last updated: 2026-08-01 ## Data Transfer Rate Converter URL: https://convertto.tech/t/data-transfer-rate-converter To convert transfer rate, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 8 supported units. Internet plans are sold in megabits (Mbps) but downloads are shown in megabytes (MB/s). Divide Mbps by 8 to get MB/s — a 100 Mbps line tops out near 12.5 MB/s. ### Facts - **Units supported**: 8 - **Base unit**: bit/s - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this transfer rate converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Internet plans are sold in megabits (Mbps) but downloads are shown in megabytes (MB/s). Divide Mbps by 8 to get MB/s — a 100 Mbps line tops out near 12.5 MB/s. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: data transfer rate converter, mbps to mb/s, internet speed converter, bandwidth converter, megabits to megabytes Last updated: 2026-08-01 ## Density Converter URL: https://convertto.tech/t/density-converter To convert density, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 6 supported units. Water at 4 °C has a density of exactly 1 g/cm³, which is 1000 kg/m³ — a convenient reference point for most conversions. ### Facts - **Units supported**: 6 - **Base unit**: kg/m³ - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this density converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Water at 4 °C has a density of exactly 1 g/cm³, which is 1000 kg/m³ — a convenient reference point for most conversions. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: density converter, g/cm3 to kg/m3, density units, lb/ft3 converter Last updated: 2026-08-01 ## Energy Converter URL: https://convertto.tech/t/energy-converter To convert energy, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 9 supported units. The "calorie" on food labels is actually a kilocalorie — 4184 joules. Nutrition labels in the EU show both kcal and kJ. ### Facts - **Units supported**: 9 - **Base unit**: J - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this energy converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. The "calorie" on food labels is actually a kilocalorie — 4184 joules. Nutrition labels in the EU show both kcal and kJ. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: energy converter, joules to calories, kwh to joules, btu converter, calories to kj Last updated: 2026-08-01 ## Force Converter URL: https://convertto.tech/t/force-converter To convert force, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 6 supported units. One newton is the force that accelerates 1 kg at 1 m/s². Standard gravity converts mass to weight: 1 kgf = 9.80665 N. ### Facts - **Units supported**: 6 - **Base unit**: N - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this force converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. One newton is the force that accelerates 1 kg at 1 m/s². Standard gravity converts mass to weight: 1 kgf = 9.80665 N. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: force converter, newtons to pounds force, kgf to n, dyne converter Last updated: 2026-08-01 ## Frequency Converter URL: https://convertto.tech/t/frequency-converter To convert frequency, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 6 supported units. One hertz is one cycle per second. RPM divides by 60: a 3000 rpm engine turns at 50 Hz. ### Facts - **Units supported**: 6 - **Base unit**: Hz - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this frequency converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. One hertz is one cycle per second. RPM divides by 60: a 3000 rpm engine turns at 50 Hz. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: frequency converter, hz to khz, mhz to ghz, rpm to hz, hertz converter Last updated: 2026-08-01 ## Fuel Economy Converter URL: https://convertto.tech/t/fuel-economy-converter To convert fuel economy, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 5 supported units. MPG and L/100km are inverses of each other, so the relationship is not linear: going from 20 to 25 mpg saves far more fuel than going from 40 to 45 mpg. ### Facts - **Units supported**: 5 - **Base unit**: L/100km - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this fuel economy converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. MPG and L/100km are inverses of each other, so the relationship is not linear: going from 20 to 25 mpg saves far more fuel than going from 40 to 45 mpg. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: fuel economy converter, mpg to l/100km, l/100km to mpg, fuel consumption converter, km per liter Last updated: 2026-08-01 ## Illuminance Converter URL: https://convertto.tech/t/illuminance-converter To convert illuminance, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 5 supported units. Office lighting is typically 300–500 lux; direct sunlight is above 100,000 lux. One foot-candle equals 10.764 lux. ### Facts - **Units supported**: 5 - **Base unit**: lx - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this illuminance converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Office lighting is typically 300–500 lux; direct sunlight is above 100,000 lux. One foot-candle equals 10.764 lux. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: illuminance converter, lux to foot candles, foot candles to lux, light level converter Last updated: 2026-08-01 ## Length Converter URL: https://convertto.tech/t/length-converter To convert length, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 14 supported units. The inch is defined as exactly 25.4 mm and the mile as exactly 1609.344 m, so metric–imperial length conversions are exact rather than approximate. ### Facts - **Units supported**: 14 - **Base unit**: m - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this length converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. The inch is defined as exactly 25.4 mm and the mile as exactly 1609.344 m, so metric–imperial length conversions are exact rather than approximate. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: length converter, cm to inches, meters to feet, km to miles, distance converter, metric to imperial length Last updated: 2026-08-01 ## Power Converter URL: https://convertto.tech/t/power-converter To convert power, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 7 supported units. Metric horsepower (PS, 735.5 W) and mechanical horsepower (745.7 W) differ by about 1.4%, which is why car specs vary between markets. ### Facts - **Units supported**: 7 - **Base unit**: W - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this power converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Metric horsepower (PS, 735.5 W) and mechanical horsepower (745.7 W) differ by about 1.4%, which is why car specs vary between markets. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: power converter, hp to kw, kw to hp, watts converter, horsepower converter Last updated: 2026-08-01 ## Pressure Converter URL: https://convertto.tech/t/pressure-converter To convert pressure, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 10 supported units. Standard atmospheric pressure is 101,325 Pa — that is 1.01325 bar or 14.696 psi. ### Facts - **Units supported**: 10 - **Base unit**: Pa - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this pressure converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Standard atmospheric pressure is 101,325 Pa — that is 1.01325 bar or 14.696 psi. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: pressure converter, bar to psi, psi to bar, pascal converter, atm to bar Last updated: 2026-08-01 ## Shoe Size Converter URL: https://convertto.tech/t/shoe-size-converter To convert shoe size, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 7 supported units. Shoe sizing is approximate and varies by brand. These conversions use foot length in millimetres (Mondopoint) as the common base — always check the maker's own chart before buying. ### Facts - **Units supported**: 7 - **Base unit**: mm - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this shoe size converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Shoe sizing is approximate and varies by brand. These conversions use foot length in millimetres (Mondopoint) as the common base — always check the maker's own chart before buying. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: shoe size converter, us to eu shoe size, uk to us shoe size, shoe size chart, mondopoint converter Last updated: 2026-08-01 ## Speed Converter URL: https://convertto.tech/t/speed-converter To convert speed, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 7 supported units. A knot is one nautical mile per hour — 1.852 km/h exactly — and remains standard in aviation and shipping. ### Facts - **Units supported**: 7 - **Base unit**: m/s - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this speed converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. A knot is one nautical mile per hour — 1.852 km/h exactly — and remains standard in aviation and shipping. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: speed converter, kmh to mph, mph to kmh, knots converter, m/s to km/h Last updated: 2026-08-01 ## Temperature Converter URL: https://convertto.tech/t/temperature-converter To convert temperature, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 5 supported units. Celsius and Fahrenheit read the same at −40°. Absolute zero is 0 K, −273.15 °C or −459.67 °F. ### Facts - **Units supported**: 5 - **Base unit**: °C - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this temperature converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Celsius and Fahrenheit read the same at −40°. Absolute zero is 0 K, −273.15 °C or −459.67 °F. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: temperature converter, celsius to fahrenheit, fahrenheit to celsius, kelvin converter, c to f Last updated: 2026-08-01 ## Time Converter URL: https://convertto.tech/t/time-converter To convert time, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 11 supported units. Months and years here use average lengths (30.44 days and 365.25 days) because calendar months vary. ### Facts - **Units supported**: 11 - **Base unit**: s - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this time converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Months and years here use average lengths (30.44 days and 365.25 days) because calendar months vary. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: time converter, hours to minutes, seconds to hours, days to hours, milliseconds converter Last updated: 2026-08-01 ## Torque Converter URL: https://convertto.tech/t/torque-converter To convert torque, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 5 supported units. Torque is force times distance. Car specs use N⋅m in Europe and lb-ft in the US; 1 lb-ft is about 1.356 N⋅m. ### Facts - **Units supported**: 5 - **Base unit**: N⋅m - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this torque converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. Torque is force times distance. Car specs use N⋅m in Europe and lb-ft in the US; 1 lb-ft is about 1.356 N⋅m. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: torque converter, nm to lb-ft, lb-ft to nm, newton meters converter Last updated: 2026-08-01 ## Volume Converter URL: https://convertto.tech/t/volume-converter To convert volume, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 16 supported units. US and imperial gallons differ substantially: 3.785 L versus 4.546 L. Always check which one a recipe or spec means. ### Facts - **Units supported**: 16 - **Base unit**: L - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this volume converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. US and imperial gallons differ substantially: 3.785 L versus 4.546 L. Always check which one a recipe or spec means. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: volume converter, liters to gallons, ml to oz, cups to ml, gallon converter Last updated: 2026-08-01 ## Weight & Mass Converter URL: https://convertto.tech/t/weight-converter To convert weight, enter a value and pick the units. The result appears instantly with the exact conversion formula, the reverse conversion, a quick-reference table of common values and every one of the 12 supported units. The pound is defined as exactly 0.45359237 kg by the 1959 international yard and pound agreement. ### Facts - **Units supported**: 12 - **Base unit**: kg - **Precision**: Adjustable from 1 to 15 significant figures - **Shows**: Formula, reverse conversion and a common-values table - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Set the value. 2. Choose the from. 3. Choose the to. 4. Turn "Swap direction" on or off as needed. 5. Set the significant figures. 6. The result appears immediately — copy or download it. ### FAQ **How accurate is this weight converter?** Conversions use exact SI definitions where one exists and are computed in double-precision floating point. You can raise the displayed precision to 15 significant figures, and the unrounded result is shown separately. The pound is defined as exactly 0.45359237 kg by the 1959 international yard and pound agreement. **Can I reverse the conversion without retyping?** Yes — the swap toggle reverses the two units in place. The reverse rate is also shown in the detail section, so you can read it either way without changing anything. **Is my data sent anywhere?** No. The conversion is plain JavaScript running in your browser. No value you type is transmitted, logged or stored. **Can I link to a specific conversion?** Yes. The URL updates as you type, so you can bookmark or share a link that reopens with exactly the same conversion. Keywords: weight converter, kg to lbs, pounds to kg, mass converter, grams to ounces, stone to kg Last updated: 2026-08-01 --- # Number Tools Convertto's number tools convert between binary, octal, decimal, hexadecimal and any base from 2 to 36, plus roman numerals, written words and scientific notation. All conversions happen locally in your browser and handle arbitrarily large integers without precision loss. ## Binary to Decimal Converter URL: https://convertto.tech/t/binary-to-decimal To convert binary to decimal, enter a string of ones and zeros above. Each digit is weighted by its power of two and summed, and the tool also shows the same value in octal and hexadecimal for comparison. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. The result appears immediately — copy or download it. ### FAQ **How do I convert binary to decimal by hand?** Multiply each digit by two raised to its position, counting from zero on the right, then add the results. So 1011 is 8 + 0 + 2 + 1 = 11. The doubling method is faster in practice: start at the left, double the running total and add the next digit. **Why does binary matter if computers hide it?** It surfaces whenever a value overflows, a bitmask is used for permissions, or a colour is packed into an integer. A file permission of 755 is three sets of three bits — read, write, execute — which only makes sense in binary. **What is the largest number a given number of bits holds?** Two to the power of the bit count, minus one. Eight bits reach 255, sixteen reach 65,535, and thirty-two reach 4,294,967,295 — which is why unsigned 32-bit counters wrap at roughly 4.3 billion. Keywords: binary to decimal, binary converter, bin to dec, convert binary number Last updated: 2026-08-01 ## Fraction to Decimal Converter URL: https://convertto.tech/t/fraction-to-decimal To convert a fraction to a decimal, enter it as 3/8 and the decimal value appears instantly. Enter a decimal instead and the tool finds the closest simplified fraction using continued fractions, along with the mixed number and percentage forms. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. Choose the convert. 3. Set the max denominator. 4. The result appears immediately — copy or download it. ### FAQ **Why do some fractions never terminate?** A fraction terminates in decimal only when its denominator, reduced, has no prime factors other than 2 and 5. One third has a factor of 3, so it repeats forever; one eighth is 2³, so it terminates at 0.125. **What does the bar over repeating digits mean?** It marks the block that repeats without end. 0.1̄6̄ means 0.161616… continuing indefinitely. Writing it out to a few places is an approximation; the bar is exact. Keywords: fraction to decimal, decimal to fraction converter, simplify fraction, mixed number converter, fraction calculator Last updated: 2026-08-01 ## Hex to Decimal Converter URL: https://convertto.tech/t/hex-to-decimal To convert hexadecimal to decimal, enter a hex value above with or without a 0x prefix. Hexadecimal digits run 0 to 9 then A to F, and the converter shows the equivalent decimal, binary and octal representations together. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. The result appears immediately — copy or download it. ### FAQ **Why is hexadecimal used instead of decimal?** Because one hex digit maps exactly to four bits, so a byte is always two hex digits. Decimal has no such alignment — 255 tells you nothing about the bit pattern, while FF makes it obvious every bit is set. **What do the letters A to F represent?** The values ten to fifteen. Hexadecimal is base 16, so it needs sixteen distinct digits and the decimal system only supplies ten. A is 10, B is 11, and so on to F at 15. **Why do colours use hex?** A colour is three bytes — red, green and blue — and each byte is two hex digits, so #FF8800 is exactly and unambiguously 255, 136, 0. The same value in decimal would need separators and would not reveal the byte boundaries. Keywords: hex to decimal, hexadecimal converter, hex to dec, convert hex number Last updated: 2026-08-01 ## Number Base Converter URL: https://convertto.tech/t/number-base-converter To convert a number between bases, enter the value, pick the base it is written in and the base you want. This converter supports every base from 2 to 36 and uses arbitrary-precision arithmetic, so numbers far larger than 64 bits convert exactly without rounding. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. Choose the from base. 3. Choose the to base. 4. The result appears immediately — copy or download it. ### FAQ **Can it handle very large numbers?** Yes. Conversion uses JavaScript BigInt rather than floating-point numbers, so values with hundreds of digits convert exactly with no precision loss. Keywords: number base converter, radix converter, binary to hex, base 36 converter, convert number base, arbitrary base conversion Last updated: 2026-08-01 ## Number to Words Converter URL: https://convertto.tech/t/number-to-words To write a number in words, enter it above and the English spelling appears instantly. The converter handles decimals, negative values and numbers into the trillions, and can output plain, Title Case or uppercase text for cheques and contracts. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your number. 2. Choose the style. 3. The result appears immediately — copy or download it. ### FAQ **Why do cheques require the amount in words?** Because digits are easy to alter — a 1 becomes a 7 with one stroke — while altering written words convincingly is far harder. Where the two disagree, most banking rules treat the written amount as authoritative. **Does English use the short or long scale?** The short scale, where a billion is a thousand million. Much of continental Europe uses the long scale, where a billion is a million million — a factor of a thousand apart, which is why financial translations state the scale explicitly. Keywords: number to words, spell numbers in english, number to text converter, write number in words, cheque amount in words Last updated: 2026-08-01 ## Octal to Decimal Converter URL: https://convertto.tech/t/octal-to-decimal To convert octal to decimal, enter a base-8 value above using digits 0 to 7. Octal is still used for Unix file permissions, where each digit encodes read, write and execute bits for one class of user. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. The result appears immediately — copy or download it. ### FAQ **Where is octal still used?** Unix file permissions, almost exclusively. chmod 755 is octal because each digit encodes exactly three permission bits — read, write and execute — which is the one place base 8 aligns neatly with the underlying data. **Why does a leading zero change a number in some languages?** Because C and its descendants historically treated a leading zero as an octal prefix, so 010 meant 8. It is a notorious source of bugs in date handling, and modern languages either removed it or require an explicit 0o prefix. Keywords: octal to decimal, octal converter, oct to dec, base 8 converter Last updated: 2026-08-01 ## Ordinal Number Converter URL: https://convertto.tech/t/ordinal-number-converter English ordinals take st, nd or rd after 1, 2 and 3 — except for 11, 12 and 13, which take th despite their final digit. That exception repeats every hundred, so 111 is 111th but 121 is 121st. This converter handles it, along with written-out words and Roman numerals. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your numbers. 2. Choose the convert to. 3. Choose the language. 4. The result appears immediately — copy or download it. ### FAQ **Why is it 11th and not 11st?** Because 11, 12 and 13 are exceptions that take "th" despite their final digits. The rule repeats every hundred, so 111 is 111th while 121 is 121st — which is why naive suffix code gets it wrong. Keywords: ordinal number converter, number to 1st 2nd 3rd, ordinal suffix generator, number to ordinal words, ordinal indicator rules Last updated: 2026-08-01 ## Percentage Converter URL: https://convertto.tech/t/percentage-converter To convert a percentage, enter the value and say what form it is in. The tool shows the equivalent percentage, decimal, simplified fraction, ratio and basis points at once, which is useful when reading financial documents that mix these units. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. Choose the input is a. 3. The result appears immediately — copy or download it. ### FAQ **What is the difference between percent and percentage points?** If a rate rises from 4% to 5%, that is one percentage point but a 25% increase. Financial and political reporting conflates the two constantly, and the difference is usually the whole story. **Why is a 50% fall not undone by a 50% rise?** Because each percentage applies to a different base. Falling 50% from 100 gives 50; rising 50% from 50 gives 75, not 100. Recovering a 50% loss requires a 100% gain. Keywords: percentage converter, percent to decimal, decimal to percent, basis points converter, percentage to fraction Last updated: 2026-08-01 ## Roman Numeral Converter URL: https://convertto.tech/t/roman-numeral-converter To convert roman numerals, enter a number to get its roman form, or a roman numeral to get its value. The converter covers 1 to 3999 and validates subtractive notation, so it rejects malformed input like IIII or IC and suggests the correct form. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. Choose the direction. 3. The result appears immediately — copy or download it. ### FAQ **Why is 4 written IV and not IIII?** Standard roman numerals use subtractive notation: a smaller numeral before a larger one is subtracted. IIII appears on some clock faces but is not the standard form, and this converter rejects it. **What is the largest roman numeral?** Using standard letters the maximum is 3999 (MMMCMXCIX). Larger values required a vinculum — an overline multiplying the numeral by 1000 — which has no standard plain-text representation. Keywords: roman numeral converter, roman numerals to numbers, number to roman numerals, roman numeral translator, convert roman numerals Last updated: 2026-08-01 ## Scientific Notation Converter URL: https://convertto.tech/t/scientific-notation-converter To convert scientific notation, enter a decimal number to express it as a coefficient times a power of ten, or enter a value like 4.2e-4 to expand it. The tool also shows engineering notation, where the exponent is always a multiple of three. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your value. 2. Choose the convert. 3. Set the significant figures. 4. The result appears immediately — copy or download it. ### FAQ **What is the difference between scientific and engineering notation?** Scientific notation uses exactly one digit before the decimal point, so 47,000 is 4.7 × 10⁴. Engineering notation restricts the exponent to multiples of three so it lines up with SI prefixes, giving 47 × 10³ — which reads directly as 47 kilo-. **Why does my calculator show E notation?** E is shorthand for "times ten to the power of", used because superscripts are hard to display. 1.5E-7 means 1.5 × 10⁻⁷. It is the same value, written for a device that cannot render exponents. Keywords: scientific notation converter, standard form converter, e notation to decimal, engineering notation, exponential notation Last updated: 2026-08-01 ## Words to Number Converter URL: https://convertto.tech/t/words-to-number To convert words into digits, type an English number phrase such as "two hundred and fifty thousand" and the numeric value appears immediately. The parser understands scale words up to trillion and ignores filler words like "and". ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your number in words. 2. The result appears immediately — copy or download it. ### FAQ **Why does "and" appear in some written numbers?** British English places "and" before the final part below a hundred: two hundred and forty-one. American English usually omits it. Both parse to the same value, and this converter accepts either. **What about hyphens?** Compound numbers from twenty-one to ninety-nine take a hyphen — forty-two, not forty two. It is conventional rather than semantic, so the converter reads both forms. Keywords: words to number, text to number converter, written number to digits, parse english numbers Last updated: 2026-08-01 --- # Text Tools Convertto offers 40+ text tools for changing case, counting words and characters, sorting and deduplicating lines, finding and replacing with regex, comparing two texts, and converting to Morse, NATO or Unicode styles. Text is processed entirely in your browser and never sent to a server. ## Acronym Generator URL: https://convertto.tech/t/acronym-generator An acronym generator takes the first letter of each significant word in a phrase and joins them. Small connecting words such as "of" and "the" are skipped by default, since real acronyms almost always drop them — PDF comes from Portable Document Format, not PDoF. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your phrase or phrases. 2. Choose the style. 3. Choose the separator. 4. Turn "Skip small words" on or off as needed. 5. The result appears immediately — copy or download it. ### FAQ **Should an acronym include small words?** Usually not. Real acronyms drop articles and prepositions — PDF comes from Portable Document Format, not PDoF, and NATO skips the "of" in North Atlantic Treaty Organization. Keeping them produces something nobody would actually say. **What is the difference between an acronym and an initialism?** An acronym is pronounced as a word — NASA, laser, scuba. An initialism is spelled out letter by letter — FBI, HTML, PDF. Both are formed the same way; only the pronunciation differs. Keywords: acronym generator, make an acronym from words, initialism generator, abbreviation maker Last updated: 2026-08-01 ## Add Line Numbers URL: https://convertto.tech/t/add-line-numbers To add line numbers, paste your text above and choose the starting number, the separator style and whether numbers should be zero-padded to equal width. Numbering is applied to every line including blank ones, so line positions stay accurate. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Set the start at. 3. Choose the separator. 4. Turn "Pad with zeros" on or off as needed. 5. The result appears immediately — copy or download it. ### FAQ **Why number lines in a document?** So people can refer to a specific place unambiguously. Legal contracts, code review, translation and proofreading all depend on being able to say "line 47" rather than describing where the text is. **Should the numbers be part of the text?** Only if the text will be read as plain characters. In a word processor or code editor, numbering is a display setting that keeps the underlying text clean — baking numbers in makes the content impossible to copy or diff properly. Keywords: add line numbers, number lines online, line numbering tool, prefix lines with numbers Last updated: 2026-08-01 ## ASCII Art Text Generator URL: https://convertto.tech/t/ascii-art-generator To create ASCII art text, type a word and choose a font. Each letter is rendered from a FIGlet font definition into a large character-based banner, ready to paste into a terminal, a README file or a code comment block. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Choose the font. 3. The result appears immediately — copy or download it. ### FAQ **Why does ASCII art need a monospace font?** Because it aligns characters into a grid. In a proportional font an "i" is narrower than an "m", so the columns drift and the picture collapses. Any font where every character has the same width preserves it. **How is an image turned into ASCII?** Each block of pixels is reduced to a brightness value, and that value is mapped to a character of similar visual density — a space for white, then dots, then denser glyphs like @ for dark. The ordering of that character ramp is what determines the result. Keywords: ascii art generator, text to ascii art, figlet online, ascii banner generator, ascii text art Last updated: 2026-08-01 ## ASCII Table Formatter URL: https://convertto.tech/t/ascii-table-formatter An ASCII table formatter aligns delimited rows into a readable fixed-width table. Paste CSV, tab or pipe separated data and get box-drawing, ASCII, Markdown or plain aligned output, with numeric columns right-aligned automatically so figures line up on the decimal. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your rows. 2. Choose the separator. 3. Choose the style. 4. Choose the alignment. 5. Turn "First row is a header" on or off as needed. 6. The result appears immediately — copy or download it. ### FAQ **Why do my columns misalign after formatting?** Almost always a proportional font. Fixed-width alignment only holds in a monospace font, where every character occupies the same width. Wide CJK characters also break it, because they occupy two cells rather than one. **When should I use a Markdown table instead?** Whenever the output will be rendered — GitHub, a README, documentation. Markdown lets the renderer size the columns, which adapts to the screen. Box-drawing tables are for terminals and plain-text files, where nothing will lay them out for you. Keywords: ascii table generator, csv to ascii table, text table formatter, markdown table generator, align columns text Last updated: 2026-08-01 ## AZW3 to EPUB Converter URL: https://convertto.tech/t/azw3-to-epub AZW3 to EPUB Converter converts electronic book files (EPUB, MOBI, AZW3) to PDF, Word, HTML, and text formats directly in your web browser. Book parsing and layout rendering run entirely on your local device without uploading files to remote servers. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Select your ebook file — the file stays on your device and is never uploaded. 2. Press Run, then download the result when it is ready. ### FAQ **Is my ebook file uploaded to a server?** No, ebook unpacking and conversion runs entirely in JavaScript on your device. Keywords: azw3 to epub, AZW3 to EPUB Converter, ebook converter online Last updated: 2026-08-01 ## Bionic Reading Converter URL: https://convertto.tech/t/bionic-reading-converter Bionic reading bolds the first few letters of every word so the eye fixates there and skims the rest, which some readers find speeds them up. Choose a fixation strength and output as HTML, Markdown or Unicode bold that survives pasting into any application. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Set the fixation strength. 3. Choose the output as. 4. The result appears immediately — copy or download it. ### FAQ **Does bionic reading actually work?** Evidence is mixed. Independent studies have not reproduced the large speed gains originally claimed, though some readers report it helps focus. Treat it as a preference, not a proven technique. **Is Unicode bold accessible?** No. Those are mathematical alphanumeric symbols, not styled letters, so screen readers either skip them or read them character by character. Use the HTML output on any page that needs to be accessible. Keywords: bionic reading converter, bionic text generator, speed reading text, bold first letters of words Last updated: 2026-08-01 ## Case Converter URL: https://convertto.tech/t/case-converter To change text case, paste your text and pick a target case. Your chosen case is shown as the headline result, and every other case — UPPERCASE, lowercase, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and dot.case — is listed underneath so you can compare and copy any of them. ### Facts - **Cases**: 12, all shown simultaneously - **Acronyms**: Handled — HTTPServer splits correctly - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Choose the convert to. 3. The result appears immediately — copy or download it. ### FAQ **What is the difference between Title Case and Sentence case?** Title Case capitalises the first letter of every word. Sentence case capitalises only the first letter of each sentence, leaving the rest lowercase. **Does it handle camelCase input correctly?** Yes. Existing camelCase and PascalCase words are split on the capital letters before being re-joined in the target case, so "userName" becomes "user_name" rather than "username". **Why show all the cases at once?** Because most people are comparing options rather than committing to one in advance. Seeing kebab-case next to snake_case next to CONSTANT_CASE makes the choice obvious without repeatedly changing a dropdown. Keywords: case converter, uppercase to lowercase, title case converter, camelcase converter, snake case, kebab case converter, text case changer Last updated: 2026-08-01 ## Checklist to Markdown URL: https://convertto.tech/t/checklist-to-markdown Converting a plain list into a Markdown task list adds the checkbox syntax that GitHub, GitLab and most note applications render as interactive tick boxes. Indentation is preserved as nesting, and the same list can be emitted as bullets, HTML checkboxes or a numbered outline. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your items. 2. Choose the output. 3. Turn "Mark completed items" on or off as needed. 4. Turn "Preserve indentation" on or off as needed. 5. The result appears immediately — copy or download it. ### FAQ **Do Markdown checkboxes work everywhere?** They render as interactive tick boxes on GitHub, GitLab and most note apps, but they are a GitHub extension rather than core CommonMark. A strict renderer shows the literal brackets instead. Keywords: checklist to markdown, markdown task list generator, convert list to checkboxes, todo list markdown, markdown checkbox syntax Last updated: 2026-08-01 ## Columns to Lines Converter URL: https://convertto.tech/t/columns-to-lines To convert between columns and lines, paste your data above and choose a direction. Delimited text is split on your chosen separator into one item per line, or a list of lines is joined back into a single delimited row, with surrounding whitespace trimmed either way. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your input. 2. Choose the direction. 3. Choose the delimiter. 4. The result appears immediately — copy or download it. ### FAQ **What is this for?** Turning a spreadsheet column into a list you can paste elsewhere — into a SQL IN clause, a config array, or a search box that takes one term per line. It is the step between copying a column and using it. **Why does pasting from a spreadsheet produce tabs?** Because spreadsheets copy as tab-separated values. Each cell is separated by a tab and each row by a newline, which is why splitting on tabs reconstructs the original columns. Keywords: columns to lines, comma separated to lines, list to comma separated, convert list format, delimiter converter Last updated: 2026-08-01 ## Email, URL & Number Extractor URL: https://convertto.tech/t/data-extractor To extract data from text, paste it and choose what to find — emails, URLs, IP addresses, phone numbers, hashtags, mentions, numbers, hex colours or dates. Results are returned as a list, comma-separated string and JSON array, with duplicates removed by default. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Choose the extract. 3. Turn "Remove duplicates" on or off as needed. 4. Turn "Sort alphabetically" on or off as needed. 5. The result appears immediately — copy or download it. ### FAQ **Will this find every email in my text?** It finds anything matching the common email shape, which covers essentially all real addresses. It will not find addresses deliberately obfuscated as "name at example dot com", and it may match strings that look like addresses but are not. **Is extracting emails from a page legal?** Extracting them is one thing; what you do next is another. Sending unsolicited mail to harvested addresses breaches GDPR in the EU, CAN-SPAM in the US and PECR in the UK. Use it on your own data. Keywords: email extractor, url extractor, extract emails from text, ip address extractor, text data extractor Last updated: 2026-08-01 ## DOC to DOCX Converter URL: https://convertto.tech/t/doc-to-docx DOC to DOCX Converter reads your .docx in the browser — the format is a ZIP of XML, so its headings, paragraphs, lists and tables can be parsed directly on your own device — and writes the converted result. Nothing is uploaded, which is the point when the document is a contract, an HR file or a medical letter. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Select your word document — the file stays on your device and is never uploaded. 2. Press Run, then download the result when it is ready. ### FAQ **It says my file is a real binary .doc and refuses.** Then it genuinely is the pre-2007 OLE compound format, which cannot be read by any browser. Every site that claims to convert it uploads your file to a server running Word or LibreOffice. Opening it locally and choosing Save As → .docx takes seconds and keeps the document on your machine. **So what does this tool actually fix?** Files that are Office Open XML but carry a .doc extension — extremely common from email gateways and older document systems — and .docx files with damaged internal structure. Both are rebuilt into a clean document. Keywords: doc to docx, doc to docx converter, convert word to docx, docx to docx online free Last updated: 2026-08-01 ## DOCX to DOC Converter URL: https://convertto.tech/t/docx-to-doc DOCX to DOC Converter reads your .docx in the browser — the format is a ZIP of XML, so its headings, paragraphs, lists and tables can be parsed directly on your own device — and writes the converted result. Nothing is uploaded, which is the point when the document is a contract, an HR file or a medical letter. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Select your word document — the file stays on your device and is never uploaded. 2. Press Run, then download the result when it is ready. ### FAQ **Why did I get an .rtf rather than a .doc?** Because writing the binary .doc format correctly requires implementing an undocumented 1990s OLE structure, and a file that merely claims to be .doc while containing something else will fail to open — which is what tools that "convert to .doc" in a browser actually hand you. Rich Text Format is the genuine legacy interchange format: Word has opened it since version 1, so has WordPerfect, LibreOffice and TextEdit, and it is a real standard rather than a guess. Keywords: docx to doc, docx to doc converter, convert word to legacy, docx to legacy online free Last updated: 2026-08-01 ## EPUB to HTML Converter URL: https://convertto.tech/t/epub-to-html EPUB to HTML Converter converts electronic book files (EPUB, MOBI, AZW3) to PDF, Word, HTML, and text formats directly in your web browser. Book parsing and layout rendering run entirely on your local device without uploading files to remote servers. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Select your ebook file — the file stays on your device and is never uploaded. 2. Press Run, then download the result when it is ready. ### FAQ **Is my ebook file uploaded to a server?** No, ebook unpacking and conversion runs entirely in JavaScript on your device. Keywords: epub to html, EPUB to HTML Converter, ebook converter online Last updated: 2026-08-01 ## EPUB to PDF Converter URL: https://convertto.tech/t/epub-to-pdf EPUB to PDF Converter converts electronic book files (EPUB, MOBI, AZW3) to PDF, Word, HTML, and text formats directly in your web browser. Book parsing and layout rendering run entirely on your local device without uploading files to remote servers. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Select your ebook file — the file stays on your device and is never uploaded. 2. Press Run, then download the result when it is ready. ### FAQ **Is my ebook file uploaded to a server?** No, ebook unpacking and conversion runs entirely in JavaScript on your device. Keywords: epub to pdf, EPUB to PDF Converter, ebook converter online Last updated: 2026-08-01 ## EPUB to Text Converter URL: https://convertto.tech/t/epub-to-text EPUB to Text Converter converts electronic book files (EPUB, MOBI, AZW3) to PDF, Word, HTML, and text formats directly in your web browser. Book parsing and layout rendering run entirely on your local device without uploading files to remote servers. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Select your ebook file — the file stays on your device and is never uploaded. 2. Press Run, then download the result when it is ready. ### FAQ **Is my ebook file uploaded to a server?** No, ebook unpacking and conversion runs entirely in JavaScript on your device. Keywords: epub to text, EPUB to Text Converter, ebook converter online Last updated: 2026-08-01 ## EPUB to Word Converter URL: https://convertto.tech/t/epub-to-word EPUB to Word Converter converts electronic book files (EPUB, MOBI, AZW3) to PDF, Word, HTML, and text formats directly in your web browser. Book parsing and layout rendering run entirely on your local device without uploading files to remote servers. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Select your ebook file — the file stays on your device and is never uploaded. 2. Press Run, then download the result when it is ready. ### FAQ **Is my ebook file uploaded to a server?** No, ebook unpacking and conversion runs entirely in JavaScript on your device. Keywords: epub to word, EPUB to Word Converter, ebook converter online Last updated: 2026-08-01 ## Fancy Text Generator URL: https://convertto.tech/t/fancy-text-generator To create fancy text, type above and pick a style. The generator maps letters onto Unicode mathematical alphanumeric symbols, so the styled text is real characters you can paste into Instagram bios, X posts and usernames rather than an image. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Choose the style. 3. The result appears immediately — copy or download it. ### FAQ **Will fancy text work everywhere?** It works anywhere Unicode is supported, which is most social platforms and messaging apps. Some fonts lack these glyphs and will show boxes, and screen readers may read them poorly — avoid it for essential information. Keywords: fancy text generator, unicode text styles, bold text generator, instagram font generator, cool text maker Last updated: 2026-08-01 ## Find and Replace Text URL: https://convertto.tech/t/find-and-replace To find and replace text, paste your document above, enter what to search for and what to replace it with. Enable regular expressions for pattern matching with capture groups referenced as $1 and $2, or leave it off for literal matching where special characters are escaped automatically. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Enter or paste your find. 3. Enter or paste your replace with. 4. Turn "Regular expression" on or off as needed. 5. Turn "Case sensitive" on or off as needed. 6. The result appears immediately — copy or download it. ### FAQ **When should I use regex rather than plain text?** When the thing you are matching varies — any number, any date, any word ending in a suffix. For a fixed string, plain replacement is faster and cannot surprise you with an unintended match. **What do $1 and $2 mean in the replacement?** They insert whatever the corresponding capture group matched. If the pattern is (\w+)@(\w+), then "$2 at $1" swaps the two halves around. It is how you rearrange text rather than just substituting it. Keywords: find and replace online, text replace tool, regex replace, bulk find replace, replace text in string Last updated: 2026-08-01 ## Glitch Text Generator URL: https://convertto.tech/t/glitch-text-generator To create glitch text, type a word above and raise the intensity slider. The generator stacks Unicode combining diacritical marks on each character, producing the corrupted "Zalgo" effect that can be pasted into most apps and social platforms. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your text. 2. Set the intensity. 3. The result appears immediately — copy or download it. ### FAQ **How does glitch text work?** By stacking Unicode combining diacritical marks on each character. Each mark is meant to sit above or below a letter, and stacking dozens of them makes the text bleed vertically beyond its line — the effect known as Zalgo. **Will glitch text break my page?** It can. Combining marks overflow their line box, so they overlap surrounding text, and some older systems slow noticeably when rendering hundreds of them on one character. Screen readers announce every mark, which makes it unusable to listen to. Keywords: glitch text generator, zalgo text, corrupted text generator, cursed text maker, creepy text Last updated: 2026-08-01 ## HTML to EPUB Converter URL: https://convertto.tech/t/html-to-epub HTML to EPUB Converter parses your markup with the browser's own HTML parser — so real-world, imperfect markup is handled the way a browser handles it — and produces a valid, reflowable EPUB 3 ebook. Everything runs in your browser; nothing is uploaded. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your html. 2. Select your or upload an .html file — the file stays on your device and is never uploaded. 3. Press Run, then download the result when it is ready. ### FAQ **Is my HTML uploaded?** No. It is parsed and converted by JavaScript in this tab. Keywords: html to epub, html to epub converter, html to epub, convert html to epub online Last updated: 2026-08-01 ## HTML to JPG Image URL: https://convertto.tech/t/html-to-jpg HTML to JPG Image parses your markup with the browser's own HTML parser — so real-world, imperfect markup is handled the way a browser handles it — and produces a rendered image of the markup. Everything runs in your browser; nothing is uploaded. ### Facts - **Privacy**: Runs entirely in your browser — nothing is uploaded - **Cost**: Free, unlimited, no sign-up ### How to use 1. Enter or paste your html. 2. Select your or upload an .html file — the file stays on your device and is never uploaded. 3. Set the render width. 4. Set the pixel density. 5. Press Run, then download the result when it is ready. ### FAQ **My images and web fonts are missing.** The renderer is sandboxed — the markup is rasterised inside a data URL, which by design cannot fetch anything from the network. Inline your CSS in a